Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Hillary Grennan, LLC

Organization Community/Behavioral Health Agency · NPI 1366092694

Hillary Grennan, LLC is a Community/Behavioral Health Agency in Sparta, New Jersey. Registered with an NPI since 2019.

In the registry since
2019
What do these letters mean?
LLC — Limited liability company
A form of business registration, not a clinical qualification.

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Practice location Address checks out

37 Main St Ste 1054
Sparta, NJ 07871-1903
Phone: (973) 670-0393
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Community/Behavioral Health Agency (primary) Taxonomy 251S00000X

Record details

NPI number1366092694
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Hillary Grennan — Managing Member · (973) 670-0393
NPI enumeratedSeptember 18, 2019
Last updated in NPPESSeptember 20, 2019
Mailing address56 Main St, Hackettstown, NJ 07840-1364

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